Excavation, Separation Removal
Excavation, Seperation & Removal.
Intro
Miller Preservation offer a direct service for the use of excavators by appropriately qualified CPCS operators for the mechanical extraction of Japanese Knotweed and of invasive plants. Through our structural and preservation works we have developed to ensure our services are competitive throughout Scotland.
The Process.
The treatment of Japanese Knotweed on site should always be given due consideration as the preferred method to deal with the problem though where time is a critical factor the main option for removal of the plant directly from the soil may be appropriate, though even in these cases some form of Herbicidal Treatment would normally be involved.
After the extent of the Japanese Knotweed has been ascertained and the initial removal and treatment of the visible (above ground) portion of the plant, the actual mechanical removal process would involve the excavation and separation of the plant material from the soil utilising a 360 Excavator fitted with a rotating screening bucket. This allows for the plant material (rhizome system) to be removed from the soil. This process enables the viable plant material to be separated from the soil enabling the soil to be re-used. This process dramatically reduces the quantities of waste.
By utilising a 360 Excavator fitted with a rotating screening bucket the need for a separate screening conveyor system is also removed reducing costs.
Waste Disposal after Mechanical Extraction
When utilising Extraction and Separation methods the client can have a number of options with regards to dealing with the waste material.
The waste material can be buried on site where space is available, though this would require for the waste material to be buried to a depth of 5 metres, this depth can be reduced to a depth of 2 metres where a containment cell is created with an appropriate root barrier membrane that has six faces and all joints suitably sealed upon filling and obviously prior to burial.
In the case of the burial options the amount of waste to be removed from site is reduced though it must be noted that the Environment Agency does not permit any other waste, such as rubble or discarded household items to be buried on site and all these must be separated and removed during excavation. If contaminants cannot be readily separated, it may not be buried. This would typically result in further separation runs utilising larger grading sizes, possibly crushing or additional removal from site.
It is therefore appropriate in some situations after the soil has been separated to dispose of all other waste off site. This increases the amount of waste though reduces on site processing which may be beneficial to the client depending upon their requirements.
Get in Touch
When you need Japanese Knotweed Control in Scotland, please don't hesitate to contact the friendly, knowledgeable team here at Miller (Preservation) Ltd on 01475 726925. Alternatively, email us via the form on our contact page or direct on info@millerpreservation.co.uk. We look forward to hearing from you!